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OomD last won the day on July 24 2016

OomD had the most liked content!

About OomD

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  1. The low DC cutoff (setting 29), I thought, was the point at which the inverter will switch off (in the absence of grid power). The point at which it would return to grid (i.e. start recharging the batteries) is setting 12. Off course I might be misunderstanding the question.
  2. But those figures will also be influenced by the azimuth.
  3. OomD

    Disposing of old batteries

    Wow as much as R11/kg? Cool, thanks I'll phone around.
  4. OomD

    Disposing of old batteries

    So I'm sitting with 12 old Ritar batteries (100AH) that I tried to resuscitate, but it seems they are beyond saving. I know these things can be recycled, are there any places that buy old batteries for recycling purposes?
  5. You are right, it's not SPP. SPP is part of "regular" bluetooth, and Apple have, in their wisdom, enforced the use of their silicon (a little authentication chip) when connecting to bluetooth devices. This means that (prior to BLE) a bluetooth device was forced to have Apple's chip inside, if the makers of the device wanted to be able to talk to it with an iOS device. Luckily, they (Apple) have done away with this stupid requirement when using BLE. So, a lot of manufacturers are simply ditching Apple's MFi program (MFi = Made For iOS) and using BLE instead of regular bluetooth - allowing them entry to the iOS environment without the "apple tax" chip. But this means losing standard things like SPP, unfortunately.
  6. Rpi3B+ has BLE.
  7. What do you mean with "it is not coded"? Are there plans to support the Bluetooth in future? Will it run on the Pi 3B+? Or does it need a recompile? (I assume you only distribute the binaries?)
  8. Thanks for the feedback, @watkykjy1. Yeah a separate Pi would probably be better anyway. I already use the PiZW for my homekit stuff, so it's probably safter to keep it separate anyway. Maybe oneday I'll finish my SuperPV project too. Time, it seems, is becoming a very rare commodity.
  9. OomD

    Axpert 73.00b funnies...

    @weber, thanks for your feedback. Yes, I thought the funny I found was related to the Axpert's own firmware, not your mod. I did notice that, as mentioned, going out of the setting and back in again allows further change. Yes, sorry I meant Aut and not Def (Default). So, that would be the optimal value to use then. You guys are to commended for your continued effort. I know it takes a lot of time away from more important things, just the fact that you're still doing it is awesome. If you ever start a donation page, which I think you should, I would be early in line to contribute. The Aussie view feature, in particular, is brilliant!
  10. Where can one find details of the Pi software? I see only a download option on the website. E.g. 1. What Pi (minimum) is needed? Would my PiZeroW suffice? 2. Is the Pi dedicated to this ICC task? Or can I continue running my own apps on it? 3. What minimum OS version (and other lib versions) is required by ICC software? 4. Can it use the Pi's bluetooth to communicate with the BMV-712 instead of a physical port? Thx!
  11. OomD

    Axpert 73.00b funnies...

    I have been away from the forum for a very long time (I blame my incessant working) and recently returned, and spotted the newest Axpert firmware 73.00b of @Coulomb on the Australian forum. Great work there, @Coulomb! Your firmware skills are respected! Anyway, I loaded 73.00b and also followed the equalisation charge procedure in the voltronics manual, having recently obtained new batteries. The procedure calls for a CV period of 900 minutes (15 hours) max. While setting everything (from the front panel) however I could not get setting 32 to go higher than 675 minutes. It would go down, but not up. Anyway I left it at that, luckily the equalisation charge completed sooner, so I revisited the settings to return all to normal. This time setting 32 would not go lower than 75? It's like it got stuck at 75, it could go up again but not down. Alas there's no button-repeat, you have to keep clicking (a bit cumbersome). Anyway, so I saved the setting at 75. Then I went back into the setting and could continue down to "Def"? It's almost like there is a max number of time you can press UP or DOWN while in the setting, but saving the value and going back in again allows further adjustment. Another weird thing... if you press ENTER to save a setting then it technically goes out of the setting, but you cannot go back in again... until you press UP/DOWN (or DOWN/UP) to first go to another setting and then come back to the original one. Then the setting number flashes again and you can press ENTER to go into the setting. Unless you do this the ENTER button has no effect. And, a question... with setting 32 added (I understand that 73.00b fixes the default 10min to 30sec), what is the optimal value to set it to? Leave it on "Def" to use @Coulomb's fixed value?
  12. OomD

    Max array and max batt ah

    Mmmm, you may be confusing me with someone else. Either that, or my Alzheimers is acting up. I don't use water, I have AGM batteries... But thanks for the info nonetheless.
  13. OomD

    Max array and max batt ah

    Just for my interest, why should one not exceed 2 hours (or thereabouts) when charging at > 13%? Purely because of efficiency reasons? Or bad for batteries?
  14. OomD


    It's coming on quite nicely, just hard to post photos of firmware :-D I've had to pause this one for the last week though, and had to spend time on my other pet project... The SmartSwitch. Hopefully I can resume this one soon.
  15. OomD


    Mockups of what will be on the main screen. Screen 1 Battery SOC (State Of Charge, %), Volts, Amps, Units in(Kwh), Units out(Kwh), Run time, estimated remaining time, Load (Kw) Solar panels Volts, Amps, Units in(Kwh), Load (Kw) Grid Volts, Units in(Kwh) House Load (Kw), Units used(Kwh) Screen 2 Total volts, State Of Charge, Temperature Inidividual battery voltages Individual battery State Of Charge Individual battery temperatures